Axle counting method and axle counting system based on wheel-rail coupling shear force detection

A shearing force and axle counting technology, which is applied in vehicle route interaction equipment, railway car body parts, railway signal and safety, etc., can solve the problems of being easily disturbed by the external environment and affecting the accuracy of axle counting measurement results, etc. Achieve the effect of improving sensitivity and accuracy, improving fault tolerance, stability and accuracy

Active Publication Date: 2021-10-26
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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Problems solved by technology

[0005] In the shaft counting measurement method in the related art, the applicant believes that there are the following problems. During the measurement, it is easy to receive interference from the external environment, which affects the stability of the shaft counting and the accuracy of the measurement results

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  • Axle counting method and axle counting system based on wheel-rail coupling shear force detection
  • Axle counting method and axle counting system based on wheel-rail coupling shear force detection
  • Axle counting method and axle counting system based on wheel-rail coupling shear force detection

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Embodiment Construction

[0069] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0070] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations ...

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Abstract

The invention relates to an axle counting method and an axle counting system based on wheel-rail coupling shear force detection. The axle counting method comprises the following steps of measuring and acquiring deformation data at a steel rail measuring point in real time; obtaining a wheel-rail coupling shear force curve at the measuring point according to the deformation data; obtaining a strain difference curve according to the wheel-rail coupling shear force curve; and performing axle counting according to the strain difference curve; the axle counting system comprises a plurality of fiber bragg grating sensing elements, an elastic substrate and a calculation unit, wherein the elastic substrate is used for fixing the fiber bragg grating sensing elements; the fiber grating sensitive element is used for measuring and acquiring deformation data at a steel rail measuring point; and the calculation unit is used for receiving the deformation data from the fiber grating sensing element, obtaining a wheel-rail coupling shear force curve according to the deformation data, obtaining a strain difference curve according to the wheel-rail coupling shear force curve, and finally performing axle counting according to the strain difference curve.

Description

technical field [0001] The invention belongs to the technical field of train detection, and in particular relates to an axle counting method and an axle counting system based on wheel-rail coupled shear force detection. Background technique [0002] With the continuous development of science and technology, axle counting devices have been widely used in rail transit signal systems under different engineering environments and line conditions, and there are many application schemes. At present, the axle counting schemes in the railway system mainly include electromagnetic axle counting schemes. [0003] Electromagnetic induction axle counting is to use, when there is a train passing by the axle counting point, the wheel axle cuts the magnetic induction line to cause the induced electromotive force on the induction coil, which is compared with the change of the induced electromotive force when there is no wheel, so as to judge whether there is a train passing by to realize the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L1/16
CPCB61L1/161B61L1/166
Inventor 张璐王智新林锦锋吴春晓王晟王岁儿张天赋晋云功闫秋吉孙国营潘建军李政颖
Owner CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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